The Fox Purist Castr 26 OZ Cycling Water Bottle Is perfect for when you're taking that sip atop a grueling climb. This moment should taste like victory, not plastic or other nasties, like yesterday's sports drink. Purist technology shields the bottle from any bad taste, mold or staining, so each thirst-quenching sip tastes pure. To top things off, the bottle is fit with a MoFlo cap for effortless mid-ride use and zero leaks. Stay hydrated on the trail without the plastic taste with the Fox Head 26 ounces. Purist bottle.